Spindle.



c. s. M. H. POSTER.

SPINDLE; APPLIGATION'HLED JAN.26. 1907.

Patented May 11, 1909.

MM @E W m M JM THE Namzls PETERS co., wllsHlNcoN, n. c.

UNITED STATESPATENT oEEioE.

CHARLES S. FOSTER AND JOSEPH H. FOSTER, OF PAWTUOKET, RHODE ISLAND, ASSIGNORS TO FALES da JENKS MACHINE COMPANY, OF PAW'IUCKET, RHODE ISLAND, A CORPORA- TION.

SPINDLE To all whom t may concern:

Be it known that we, CHARLES S. FOSTER and JOSEPH H. FOSTER, citizens of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have jointly invented certain new and useful Improvements in Spindles, ot which the following is a specilication.

Our invention relates to spindles for spinning and twisting cotton, etc., and more particularly to improvements in the bolster case, and the bolster of the spindle.

The object of our invention is to improve upon the construction of the bolster case, and the bolster of a spindle, as ordinarily made, and more particularly to provide a bolster case and bolster, having unbroken annular surfaces at the upper part ot the bolster case and bolster, combined with a return oil passage, and a lock to prevent the bolster from rotating within the bolster case.

Our invention consists in certain novel features of construction of our improvements as will be hereinafter fully described.

Vle have only shown in the drawing sufiicient portions of a spindle, and a bolster case, and bolster, embodying` our improvements, to enable those skilled in the art to understand the construction and operation thereof.

Referring to the drawing Figure 1 is a side view of a boster case embodying our improvements, showing by broken lines the lower portion oi. a spindle. Fig. 2 is a top or plan view of the` bolster case, and bolster, shown in Fig. l, looking in the direction of arrow a, same figure; the spindle is not shown in this figure. Fig. 3 is a central vertical section through the bolster case and bolster, taken at a point indicated by line 2, 2, Fig. 2, looking in the direction of arrow ZJ, same figure. Fig. 4 is a section, on line t, 4C, Fig. 3, looking in the direction of arrow c, same figure. Fig. 5 is a side view of the upper part of the bolster removed, looking in the direction of arrow d, Fig. 3. Fig. 6 is the opposite side view of the upper part of the bolster removed, looking in the direction of arrow f, Fig. 3. Fig. 7 is a side and edge view of the bolster locking device.

In the accompanying drawing, the spindle l, shown by dotted lines in Fig. 1, may be of any usual and well known construction, and provided with a whirl 2 on its lower Specification of Letters Patent.v

Application led January 26, 1907.

Patented May 11, 1909.

Serial No. 354,177.

part, and having a shank, not shown, eX- tending down therefrom in the usual way, to extend into and turn loosely within the bolster 3.

4 is the bolster case within which the bolster 3 loosely extends, and which may be of the ordinary shape and construction, except that instead or" having a vertically eX- tending groove upon its inner surface, as is customary, to receive a lug or projection on the bolster, and prevent the rotation of the bolster within the bolster case, it is provided with an inwardly extending projection or staple 4', in this instance made of wire, and of the shape shown in Fig. 7, the two ends of the wire extending through holes in the bolster case et, and riveted therein, as shown inFig. 3.

It will be understood that the staple il is made separate tromthe bolster case 4, and is inserted through the upper open end of the bolster case, and the two prongs on the staple 4; inserted through openings in the Wall of the bolster case 4;, from the inside of the bolster case, and then headed or riveted to secure the staple il to the bolster case. j

The upper end of the bolster 3, when it is in position within the bolster case, extends in a horizontal plane below the upper end of the bolster case, and the bolster 3 has its upper end ot' enlarged external diameter. Below the enlarged upper part of the bolster 3, the bolster is made slightly tapering toward its lower end, as shown in Fig. 3, so that the bolster 3 will extend loosely within the bolster case et, and there will be a space around the bolster within the bolster case, below the enlarged upper part of said bolster, which space is intended to be filled with oil, which will act as an oil cushion for the bolster'. On one side of the upper end of the bolster case, where it is of enlarged external diameter, and below the upper end of said case, is a vertically extending groove or recess 3, see Figs. 3 and 6, which is open at its lower end and is of a width to receive the staple 4, as shown in Fig. 4. When the bolster 3 is inserted within the bolster case it is moved around there in until the lower open end of the groove 3a extends in alinement with the staple t', and said staple 4', as the bolster is moved down in the bolster case, enters the groove 3, as shown in Fig. 3. The lug el extending into the groove 3a, as shown in Figs. 3 and fl, prevents the rotation of the bolster 3 within the bolster case l, but will not prevent the free removal of the bolster from the bolster case. In this instance on the opposite side of the upper enlarged part of the bolster 3 from the groove 3, is an inclosed vertically extending oil hole or opening 3, see Fig. 3, which leads at its lower end into a vertically extending slot or opening 3" through the bolster, see Figs. 3 vand 5. At the lower end of the bolster 3 there are in this instance two vertically extending slots or openings 3 through the bolster, for the passage of oil.

By making the vertically extending Ioil hole or incl-osed opening 3 in the upper part of the bolster 3, wholly within the body portion of the bolster, we provide an unbroken annular surface or periphery at the upper end of the bolster, to extend within the bolster case, which has an unbroken inner surface, instead of having an uninclosed or open, vertically extending elongated slot or recess in the upper part or" the bolster, which would leave a broken annular surface or periphery on the upper part lof the bolster, as is customary.

In practice the oil is ordinarily poured into the bolster case 4L through the upper open end thereof, to partially lill the lower part of said case before the bolster 3 is inserted, so that the oil will extend all around the bolster below the enlarged upper part thereof, and will pass through the openings 3 and 3 in the bolster to come in contact with the spindle to lubricate the spindle, and as the spindle is revolved within the bolster, the oil may work up within the bolster around the spindle, and in case of any overflow at the upper end of the bolster, the oil will pass down through the inclosed opening 3 in the upper end of the bolster. By this construction a thorough lubrication of the spindle is obtained and any escape of oil over the upper end of the bolster case is prevented. I

It will be understood that the #details of construction of our improvements may be varied if desired.

Having thus described our invention, what we claim asnew and desire to secure by Letters Patent is 1. The combination with a bolster case for a spindle having an inwardly projecting locking staple made separate therefrom and secured upon its interior surface, of a bolster, having its upper lend lof enlarged yexternal diameter, land extending in a hori- Zontal plane bel-ow the upper end of the bolster case., and having in said lenlarged end a groove er recess t-o receive said locking staple, and also an in'closed oil opening leading from the upper end of the bolster to a slot or opening through the bolster, and said slot.

2. The combination with a bolster' case for a spindle, having an inwardly projecting staple made separate therefrom and secured upon its interior surface, to extend into a groove or recess in the bolster and form a lock to prevent the rotation of the bolster, of ysaid bolster, having its upper end enlarged and vextending in a horizontal plane below the upper end of the bolster case, and a vertically extending groove or recess on one side of said enlarged end, said groove or recess opened at its lower end to receive the staple in the bolster case, and also having an inclosed vertically extending opening within said enlarged end for an oil lopening, extending from the upper end of the bolster to a slot or opening through the bolster, and said slot or opening.

CHARLES S. FOSTER. JOSEPH H. FOSTER.

Witnesses GEORGE lll. BARTLETT, HERBERT BEEDE. 

